33490420429 has 4 divisors (see below), whose sum is σ = 33557536000. Its totient is φ = 33423304860.

The previous prime is 33490420423. The next prime is 33490420487. The reversal of 33490420429 is 92402409433.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 33490420429 - 2²¹ = 33488323277 is a prime.

It is a super-2 number, since 2×33490420429² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33490420391 and 33490420400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33490420423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33557037 + ... + 33558034.

It is an arithmetic number, because the mean of its divisors is an integer number (8389384000).

Almost surely, 2^33490420429 is an apocalyptic number.

It is an amenable number.

33490420429 is a deficient number, since it is larger than the sum of its proper divisors (67115571).

33490420429 is an equidigital number, since it uses as much as digits as its factorization.

33490420429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67115570.

The product of its (nonzero) digits is 186624, while the sum is 40.

The spelling of 33490420429 in words is "thirty-three billion, four hundred ninety million, four hundred twenty thousand, four hundred twenty-nine".